61664346 has 12 divisors (see below), whose sum is σ = 133606122. Its totient is φ = 20554776.

The previous prime is 61664333. The next prime is 61664359. The reversal of 61664346 is 64346616.

61664346 is a `hidden beast` number, since 6 + 1 + 6 + 643 + 4 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (61664333) and next prime (61664359).

It can be written as a sum of positive squares in only one way, i.e., 49491225 + 12173121 = 7035^2 + 3489^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61664346.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1712881 + ... + 1712916.

Almost surely, 2^61664346 is an apocalyptic number.

61664346 is an abundant number, since it is smaller than the sum of its proper divisors (71941776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61664346 is a wasteful number, since it uses less digits than its factorization.

61664346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425805 (or 3425802 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 61664346 is about 7852.6648979821. The cubic root of 61664346 is about 395.0736304549.

The spelling of 61664346 in words is "sixty-one million, six hundred sixty-four thousand, three hundred forty-six".